Blue Star Ferries
Check the Kos departure for your date, passenger category, vehicle space and ticket conditions.
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Greece → Greece
Kos to Piraeus Ferry Route Guide
Start in Kos and plan the crossing to Piraeus: choose the departure terminal, compare the dated sailing and arrange the connection after landing. Use the reverse guide for the return journey.
Check the dated return sailingBlue Star FerriesConfirm operator and passenger category
Route guide
Travel from Kos to Piraeus
This page covers the Kos to Piraeus direction. Check the departure from Kos specifically: the return timetable, vessel and intermediate calls can differ from those in the opposite direction.
Departing Kos. The passenger harbour is directly beside Kos Town, making foot-passenger arrivals straightforward. Vehicle boarding, quay allocation and exact check-in points can vary by operator and sailing, so use the booking confirmation and port signage on the day of travel.
On arrival in Piraeus. Blue Star Ferries’ 2026 network confirms Piraeus services to the Cyclades, Dodecanese, Saronic islands, North Aegean and Crete, alongside services from other Greek operators.
Use the dated timetable for the departure and arrival time. Do not calculate this direction from the outward crossing time: daylight, overnight and multi-stop sailings can have different durations.
Corridor context. Piraeus–Kos is one of the main long-distance links from Athens into the Dodecanese. It is particularly valuable for travellers bringing a car, planning a multi-island trip or preferring an overnight ferry to a flight. The route usually forms part of a longer island chain rather than running non-stop, so the exact journey time depends on the intermediate calls used on your date.
For the opposite direction and the original crossing details, see Piraeus → Kos.
Ferry companies
Ferry operator for Kos–Piraeus
Compare the exact sailing and the conditions for your passenger and vehicle category.
Ports & terminals
Kos departure and Piraeus arrival
Kos
The passenger harbour is directly beside Kos Town, making foot-passenger arrivals straightforward. Vehicle boarding, quay allocation and exact check-in points can vary by operator and sailing, so use the booking confirmation and port signage on the day of travel.
Read the Kos port guide →Piraeus
Blue Star Ferries’ 2026 network confirms Piraeus services to the Cyclades, Dodecanese, Saronic islands, North Aegean and Crete, alongside services from other Greek operators.
Read the Piraeus port guide →On the crossing
Prepare for the vessel and journey booked
Facilities depend on the vessel assigned to the departure. Treat the booking result and operator confirmation as the source for the exact ship and onboard services.
Seating and accommodation
Use the dated timetable for the departure and arrival time. Do not calculate this direction from the outward crossing time: daylight, overnight and multi-stop sailings can have different durations.
What to keep with you
Keep tickets, medicines, weatherproof layers and essentials with you. On a vehicle ferry, access to the garage is usually restricted once the ship is at sea. Check whether the selected ticket includes a seat, cabin or only passage.
Vehicles, bicycles and assistance
Check the passenger and vehicle categories for the selected operator and vessel. Foot-passenger access, car space, bicycle arrangements, luggage and assistance may differ between services on the same corridor.
Before departure
Tickets, identification and check-in
Booking confirmation
Keep the final confirmation accessible and check whether a QR code, printed ticket or exchange at the terminal is required. The supplier’s instructions override general guidance.
Identification
Carry the identification and travel documents required for the countries and territories in your itinerary. Domestic routes can still have operator identification rules.
Arrival time
Vehicle check-in often closes earlier than foot-passenger check-in. Use the time on the ticket and allow extra margin for traffic, parking or terminal access.
Onward travel
On arrival in Piraeus
Blue Star Ferries’ 2026 network confirms Piraeus services to the Cyclades, Dodecanese, Saronic islands, North Aegean and Crete, alongside services from other Greek operators.
Blue Star Ferries’ 2026 network confirms Piraeus services to the Cyclades, Dodecanese, Saronic islands, North Aegean and Crete, alongside services from other Greek operators.
Compare options
Return travel and alternatives
For the return, use the Piraeus to Kos guide. Check both directions before choosing accommodation. If no sailing appears, use the official timetable to distinguish a sold-out departure, a seasonal service and an operator absent from the comparison search.
Connect the Kos to Piraeus crossing with your land journey
Build the itinerary in sailing order: reach the departure terminal at Kos, complete ferry check-in, then plan the transfer from the arrival terminal at Piraeus. Compare that full sequence with the route in the booking result; a place name alone does not identify the quay or the passenger entrance.
Plan the two ends of the crossing: Kos departure and local travel guide · Piraeus arrival and local travel guide.
For the return, the journey starts at Piraeus. Use the Piraeus to Kos guide to check that departure separately; the last useful connection and the terminal approach at Piraeus may differ from the outward trip.
Other guides from Kos towards Greece: Kos to Kalymnos · Kos to Leros.
These are different arrival points, not interchangeable tickets. Compare the onward distance and the passenger categories accepted before treating another port as an alternative.
Map orientation: Kos area in Google Maps · Piraeus area in Google Maps.
The map searches show the named places. Use the terminal address and reporting instructions on your operator confirmation for navigation to check-in.
Frequently asked questions
Kos to Piraeus ferry FAQs
Where does the Kos to Piraeus ferry leave?
The passenger harbour is directly beside Kos Town, making foot-passenger arrivals straightforward. Vehicle boarding, quay allocation and exact check-in points can vary by operator and sailing, so use the booking confirmation and port signage on the day of travel.
How long is the crossing?
The planning guide is Check the dated return sailing. Confirm the departure and arrival shown for the exact date, since vessel assignments and intermediate stops can change.
Which operator should I check?
Blue Star Ferries. This page covers the Kos to Piraeus direction. Check the departure from Kos specifically: the return timetable, vessel and intermediate calls can differ from those in the opposite direction.
Can I take a vehicle or bicycle?
Check the passenger and vehicle categories for the selected operator and vessel. Foot-passenger access, car space, bicycle arrangements, luggage and assistance may differ between services on the same corridor.
How do I arrange my return?
Check the Piraeus to Kos timetable before booking the outward journey. A return may use a different vessel, schedule or intermediate-stop pattern.
What if the route is not in the comparison form?
Use the official operator timetable and booking link on this page. Some local routes and passenger categories are not sold through the comparison provider; a blank result alone does not establish that the route has closed.
What should I plan after arrival?
Blue Star Ferries’ 2026 network confirms Piraeus services to the Cyclades, Dodecanese, Saronic islands, North Aegean and Crete, alongside services from other Greek operators.
Compare live sailings
Check Prices & AvailabilityPlan your Kos to Piraeus crossing
Search the exact date, passengers and vehicle details, then verify the route and operator before booking.